Endless loop...
 

NPC Code:

---

if (timeout&&this.loop=2){

  if (this.key5=true){

    this.hits+=1;

    showimg 0,@@c@SUCCESSFUL,screenwidth/2,screenheight/1-10;

    changeimgvis 0,4;

    this.key1=false;

    this.key2=false;

    this.key3=false;

    this.key4=false;

    this.key5=false;

    displaycraft();

    sleep 2;

    this.loop=1;

    timeout=1;

  }

  else{

    showimg 0,@@c@FAILED,screenwidth/2,screenheight/1-10;

    changeimgvis 0,4;

    this.key1=false;

    this.key2=false;

    this.key3=false;

    this.key4=false;

    this.key5=false;

    displaycraft();

    this.loop=1;

    timeout=1;

  }

}

---

For some reason, even though this.loop=1, the timeout still continues to execute the script :\.

== instead of just the single = in the if conditions. = is an asignment statement, == is a comparison statement, dont get them mixed up.

Thats just looking at it at a glance, If there is anything else wrong though it would be in the body of the script.